World: Rename Update() to Refresh()

Also updated comment block

SDK/include/NDK/World.hpp

@@ -64,8 +64,9 @@ namespace Ndk
 			inline void RemoveSystem(SystemIndex index);
 			template<typename SystemType> void RemoveSystem();
 
-			void Update();
-			inline void Update(float elapsedTime);
+			void Refresh();
+
+			void Update(float elapsedTime);
 
 			World& operator=(const World&) = delete;
 			inline World& operator=(World&& world) noexcept;

SDK/include/NDK/World.inl

@@ -278,21 +278,6 @@ namespace Ndk
 		RemoveSystem(index);
 	}
 
-	/*!
-	* \brief Updates the world
-	*
-	* \param elapsedTime Delta time used for the update
-	*/
-
-	inline void World::Update(float elapsedTime)
-	{
-		Update(); //< Update entities
-
-		// And then update systems
-		for (auto& systemPtr : m_orderedSystems)
-			systemPtr->Update(elapsedTime);
-	}
-
 	/*!
 	* \brief Moves a world into another world object
 	* \return A reference to the object